| Presentation | 2022-01-20 A zero-forcing linear precoding scheme using QR decomposition with greedy permutation for MIMO communications Shigenori Kinjo, Shuichi Ohno, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, we study a zero-forcing linear precoding (ZFLP) scheme using QR decomposition with greedy permutation, which is carried out to maximize a bit-rate, for MIMO communications. Conventional ZFLP schemes have been suffered from transmit power enhancement that is induced by the precoding operation at the transmitter. We therefore need to multiply a very small scaling factor (SF) to constrain the large transmit power within an allowed value, however the small SF results in the poor performance of receivers. In this study, we apply, so called, modified sorted QR decomposition (MSQRD), which involves greedy permutations, to generate a precoding matrix for the ZFLP. We show that the large power enhancement does not induced and the given SF becomes feasible value, and receiver performance is improved in comparison to the conventional ZFLP schemes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Zero-forcing / Linear precoding / MIMO communications / QR decomposition |
| Paper # | IT2021-57,SIP2021-65,RCS2021-225 |
| Date of Issue | 2022-01-13 (IT, SIP, RCS) |
| Conference Information | |
| Committee | RCS / SIP / IT |
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| Conference Date | 2022/1/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Yukihiro Bandou(NTT) / Tadashi Wadayama(Nagoya Inst. of Tech.) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Toshihisa Tanaka(Tokyo Univ. Agri.&Tech.) / Takayuki Nakachi(Ryukyu Univ.) / Tetsuya Kojima(Tokyo Kosen) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Xiaomi) / Toshihisa Tanaka(Takushoku Univ.) / Takayuki Nakachi(Tokyo Univ. Agri.&Tech.) / Tetsuya Kojima(Saitamai Univ.) |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Taichi Yoshida(UEC) / Seisuke Kyochi(Univ. of Kitakyushu) / Masanori Hirotomo(Saga Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Signal Processing / Technical Committee on Information Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A zero-forcing linear precoding scheme using QR decomposition with greedy permutation for MIMO communications |
| Sub Title (in English) | |
| Keyword(1) | Zero-forcing |
| Keyword(2) | Linear precoding |
| Keyword(3) | MIMO communications |
| Keyword(4) | QR decomposition |
| 1st Author's Name | Shigenori Kinjo |
| 1st Author's Affiliation | Japan Coast Guard Academy(JCGA) |
| 2nd Author's Name | Shuichi Ohno |
| 2nd Author's Affiliation | Osaka City University(Osaka City Univ.) |
| Date | 2022-01-20 |
| Paper # | IT2021-57,SIP2021-65,RCS2021-225 |
| Volume (vol) | vol.121 |
| Number (no) | IT-327,SIP-328,RCS-329 |
| Page | pp.pp.161-166(IT), pp.161-166(SIP), pp.161-166(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-01-13 (IT, SIP, RCS) |